Handheld biothreat detector



FIG. 1 is a front perspective view of a handheld biothreat detector, where the top, larger panel is a display;

FIG. 2 is a rear perspective view, thereof;

FIG. 3 is a front elevation view, thereof, where the left, larger panel is a display;

FIG. 4 is a rear elevation view, thereof;

FIG. 5 is a right side elevation view, thereof;

FIG. 6 is a left side elevation view, thereof;

FIG. 7 is a top plan view, thereof; and,

FIG. 8 is a bottom plan view, thereof.

The phantom lines are for illustrative purposes only, and form no part of the design. 

The ornamental design for a handheld biothreat detector, as shown and described. 